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AUBURN, Maine (NEWS CENTER) -- Candidates are making their final push and final pleas to Maine voters before Tuesday's Primary Election. Unlike some previous primaries, except for local races, all the attention is on the Republican and Democratic primaries in Maine's Second Congressional District.

For the first time in 10 years, the "2nd CD," as politicians call it, is an open seat. Incumbent Rep. Mike Michaud is leaving the Congressional seat to run for Governor.

Democrats Emily Cain and Troy Jackson were busy working for votes Monday. Jackson spent the day at multiple phone banks in Union halls in several parts of central Maine. Jackson has based his campaign on being a voice for the working class. He says he has a lot of support, but is the underdog.

Fellow Democrat Emily Cain spent the day touring businesses in Auburn and Lewiston. Her campaign has raised significantly more money than Jackson's, along with endorsements from several major groups in and out of Maine. The money has allowed Cain to advertise on television, which Jackson has not been able to do. And two of the groups supporting Cain have reportedly spent money on mailings opposing Jackson.

On the GOP side Bruce Poliquin and Kevin Raye spent Monday doing the same work as the Democrats. Poliquin and Raye have waged an intense and often negative campaign, filled with attack ads, negative mailings and social media messages.

In both races, the candidates represent sharp contrasts within their parties. Voters will decide Tuesday which direction they want the parties to take in the fall election.

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